초록 ▼

A projector 3 is provided for casting light toward the inside of a spherical screen 2. A first reflecting mirror 4 is arranged inside the spherical screen 2 on the optical axis 15 of the projector 3, and a second reflecting mirror 5 of a convex mirror on the optical axis 15 is arranged adjacent to a

A projector 3 is provided for casting light toward the inside of a spherical screen 2. A first reflecting mirror 4 is arranged inside the spherical screen 2 on the optical axis 15 of the projector 3, and a second reflecting mirror 5 of a convex mirror on the optical axis 15 is arranged adjacent to a body tube 16 of the projector 3. The light emitted from the projector 3 is cast onto the entire surface of the spherical screen 2 via the first and second reflecting mirrors 4, 5. Images with virtual presence can be projected onto the entire surface of the spherical screen by the simple structures using the single projector.

대표청구항 ▼

[ What is claimed is:] [1.]1. A full-surround spherical screen projection system comprising:a spherical screen formed inside of a sphere;a projector for projecting light toward the inside of said sphere, said projector emitting a pre-distorted image of a subject, which pre-distorted image is configu

[ What is claimed is:] [1.]1. A full-surround spherical screen projection system comprising:a spherical screen formed inside of a sphere;a projector for projecting light toward the inside of said sphere, said projector emitting a pre-distorted image of a subject, which pre-distorted image is configured to be cast on said spherical screen;a first reflecting mirror comprising either one of a plane mirror or a concave mirror, placed away from the center of said sphere inside of said sphere, for reflecting the light toward the outside of said sphere; anda second reflecting mirror constituting a convex mirror reflecting the light from said first reflecting mirror to said spherical screen, said second reflecting mirror being disposed further away from the center of said sphere than is said first reflecting mirror, said convex mirror being configured to compensate for the distortions of the pre-distorted image, whereby an image of the subject is cast on the spherical screen without distortions.